CN209055277U - A kind of scene ready-package Rotor Low-speed Dynamic platform - Google Patents
A kind of scene ready-package Rotor Low-speed Dynamic platform Download PDFInfo
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- CN209055277U CN209055277U CN201822135565.7U CN201822135565U CN209055277U CN 209055277 U CN209055277 U CN 209055277U CN 201822135565 U CN201822135565 U CN 201822135565U CN 209055277 U CN209055277 U CN 209055277U
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Abstract
The embodiment of the present application discloses a kind of live ready-package Rotor Low-speed Dynamic platform, including base support, rubber cushion blocks, bearing block, the bearing for setting up rotor to be measured, key phase, vibrating sensor, motor, data collecting instrument and computer for driving rotor rotation to be measured；Pass through the structure of above-mentioned Rotor Low-speed Dynamic platform, it can establish the first critical speed prediction model of Rotor Low-speed Dynamic platform system, when needing to carry out Rotor Low-speed Dynamic test based on Rotor Low-speed Dynamic platform provided by the present application, the first critical speed of above-mentioned first critical speed prediction model prediction Rotor Low-speed Dynamic platform system can be first passed through, obtained first critical speed to be predicted builds Rotor Low-speed Dynamic platform when meeting dynamic balance running condition again, to can once put up the Rotor Low-speed Dynamic platform for meeting dynamic balance running condition, realize live fast-assembling, save duration and cost.
Description
Technical field
This application involves fired power generating unit mechanical oscillation fields, more specifically to a kind of live ready-package rotor low speed
Dynamic balance bench.
Background technique
Rotor dynamic balancing is a research contents of rotor dynamics, and imbalance can cause the vibration values of rotor to increase, no
Conducive to rotor normal operation.So for there are the rotors of mass unbalance should carry out dynamic balance treatment.Machine manufacture or
In maintenance, dynamic balancing becomes a procedure.
Often the duration is nervous for unit maintenance, while expending the factors such as higher cost in order to avoid rotor returns factory, usually selects
Dynamic balance bench is built at the scene carries out Rotor Low-speed Dynamic test.The balancing speed control of general the low speed dynamic balance at field test
In 250r/min or so or more lower, thus the first critical speed that rotor is significantly appeared under this balancing speed is required,
There is appropriate sensitivity to unbalance on low-speed balancing platform to obtain rotor.This sensitivity to unbalance is by adjusting dynamic
The support stiffness of balancer is come what is realized, and its essence is the single order that adjustment support stiffness obtains suitable dynamic balance bench system is critical
Revolving speed (generally takes 120r/min~150r/min), to meet the condition for implementing dynamic balance running at the scene.
Currently, scene frequently with rubber pad low-speed balancing platform, is the original dimension for rule of thumb designing rubber cushion blocks
Low-speed balancing platform is set up, subsequent motor drag rotor carries out preliminary operation.If dynamic balance bench system cannot obtain in boosting velocity procedure
To expected first critical speed (excessively high, too low all bad), then need shutdown to remove rubber cushion blocks and re-start rubber cushion blocks
Size adjusting reinstalls to rubber cushion blocks adjusted on dynamic balance bench.It is generally necessary to which repeatedly adjusting can just be finally reached
The demand of the low speed dynamic balance at field test.And the process CIMS of scene dismounting rubber cushion blocks is complicated, frequent dismounting adjustment rubber
Cushion block not only expends a large amount of manpower and material resources, also can not good control to the duration at scene.
Therefore, how quickly to search out suitable support stiffness, fast construction the low speed dynamic balance at field platform become urgently solve
Certainly the technical issues of.
Utility model content
The purpose of the application is to provide a kind of live ready-package Rotor Low-speed Dynamic platform, is existed in the prior art with overcoming
The technical issues of.
To achieve the above object, this application provides following technical solutions:
A kind of scene ready-package Rotor Low-speed Dynamic platform, comprising:
Base support；
For adjusting the rubber cushion blocks of the Rotor Low-speed Dynamic platform support stiffness；
Bearing block；
For setting up the bearing of rotor to be measured；
For measuring the key phase of revolving speed；
For measuring the vibrating sensor of vibration；
For driving the motor of the rotor rotation to be measured；
Data collecting instrument and computer；
Wherein, the rubber cushion blocks are mounted between the base support and the bearing block, and the bearing is mounted on institute
It states on bearing block, the key phase is mounted on the axial edge of the bearing, and the vibrating sensor is mounted on the axis
It holds on seat；The data collecting instrument is connect with the key phase and the vibrating sensor；The computer and the number
It is connected according to Acquisition Instrument；The rubber cushion blocks include: the non-driven-end bearing rubber cushion blocks of the motor, drive end bearing rubber pad
Block.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that the quantity of the vibrating sensor is 2~4.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that 2~4 vibrating sensors are arranged in same level not
Same position.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that the non-driven-end bearing rubber cushion blocks include N number of sub- rubber pad
Block, the drive end bearing rubber cushion blocks include P sub- rubber cushion blocks, and the N and P are integer.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that the bearing is half circular journal bearing.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that the base support is connect by fixing bolt with concrete pedestal.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that further include:
Oil dripping tube, the oil dripping tube are located at the top of the bearing, the lubricating oil of the oil dripping tube drippage for it is described to
Survey the lubrication between rotor and the bearing.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that the motor and the rotor to be measured are connected by gear or universal joint
It connects.
Above-mentioned Rotor Low-speed Dynamic platform, it is preferred that the motor is the motor braked by salt bath principle.
By above scheme it is found that a kind of live ready-package Rotor Low-speed Dynamic platform provided by the present application, including pedestal
Bracket, rubber cushion blocks, bearing block, the bearing for setting up rotor to be measured, key phase, vibrating sensor, for drive to
Survey motor, data collecting instrument and the computer of rotor rotation；By the structure of above-mentioned Rotor Low-speed Dynamic platform, it can establish and turn
The first critical speed prediction model of sub- low-speed balancing platform system, and support stiffness and rubber due to Rotor Low-speed Dynamic platform
The size of rubber mat block is related, therefore, by the first critical speed prediction model, can find rubber cushion blocks size and face with single order
Relationship between boundary's revolving speed, so as to the first critical speed of the good Rotor Low-speed Dynamic platform system of look-ahead system building
The requirement for whether meeting dynamic balance running carries out repeatedly without rubber cushion blocks are installed on after above-mentioned low-speed balancing platform
Preliminary operation and dismounting adjustment rubber cushion blocks reach and quickly search out the good live rotor low speed of suitable support stiffness, fast construction and move
The purpose of balancer.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of Rotor Low-speed Dynamic platform provided by the embodiments of the present application；
Fig. 2 is the right view of Rotor Low-speed Dynamic platform shown in Fig. 1.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall in the protection scope of this application.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the one of live ready-package Rotor Low-speed Dynamic platform provided by the embodiments of the present application
Kind structural schematic diagram, Fig. 2 are that the right view of Rotor Low-speed Dynamic platform shown in Fig. 1 (only shows the portions in Fig. 1 in 2 in figure
Part), which may include:
Base support 1, rubber cushion blocks 2, bearing block 3, bearing 4, oil dripping tube 5, fixing bolt 6, motor 7 (do not show in Fig. 1
Out), vibrating sensor 8, key phase 9, data collecting instrument 10 and computer 11；
Wherein, rubber cushion blocks 2 are mounted between base support 1 and bearing block 3.The support stiffness of Rotor Low-speed Dynamic platform
It is adjusted by rubber cushion blocks 2.By adjusting the size of rubber cushion blocks 2, thus it is possible to vary the bearing of Rotor Low-speed Dynamic platform is rigid
Degree.
Bearing 4 is mounted on bearing block 3, and bearing 4 is for setting up rotor to be measured, and bearing 4 is half circular journal bearing.
Vibrating sensor 8, for measuring bearing shell vibration.Vibrating sensor 8 is mounted on bearing block 3, and optionally, vibration passes
Sensor 8 may be mounted at side parallel with the axis of bearing 4 on bearing block 3.
Key phase 9 is mounted on the axial edge of bearing 4, for measuring the revolving speed of rotor to be measured.
Motor 7 is connect with rotor to be measured, for driving rotor to be measured to rotate.
Data collecting instrument 10 is used to acquire the data of key phase 9 and vibrating sensor 8, and transfers data to calculating
Machine 11, in order to monitor the first critical speed of bearing shell vibration and Rotor Low-speed Dynamic platform system.
Wherein, rubber cushion blocks 2 include two parts, are respectively as follows: the non-driven-end bearing rubber cushion blocks of motor 7, drive end axle
Hold rubber cushion blocks.
Optionally, vibrating sensor 8 can be set multiple, such as can be set 2~4, and multiple vibrating sensor 8 divides
Cloth is simutaneously arranged in same level on the bearing block of non-driven-end bearing and the bearing block of drive end bearing.
Optionally, non-driven-end bearing rubber cushion blocks may include N number of sub- rubber cushion blocks, and drive end bearing rubber cushion blocks can
To include P sub- rubber cushion blocks, P and N are integer, and P and N may be the same or different.
Optionally, base support 1 can be connect by fixing bolt 6 with concrete pedestal, and base support 1 is fixed on water
On the basis of mud.
Optionally, oil dripping tube 5 is located at 4 top of bearing, and the lubricating oil of the oil dripping tube 5 drippage is used for rotor to be measured and bearing 4
Between lubrication.
Optionally, it can be connected by gear or universal joint between rotor and motor 7 to be measured, i.e., rotor to be measured is by motor
Pass through gear or universal joint drive.
Optionally, in the embodiment of the present application, motor is the motor braked by salt bath principle.
Based on above-mentioned Rotor Low-speed Dynamic platform, the prediction of Rotor Low-speed Dynamic platform system first critical speed can establish
Model f1:
Wherein, k1Indicate the non-driven-end bearing rubber cushion blocks stiffness coefficient of Rotor Low-speed Dynamic platform；k2Indicate that rotor is low
The drive end bearing rubber cushion blocks stiffness coefficient of quick-action balancer；M indicates the quality of rotor to be measured.
When needing to carry out Rotor Low-speed Dynamic test based on Rotor Low-speed Dynamic platform provided by the present application, Ke Yixian
The first critical speed of Rotor Low-speed Dynamic platform system is predicted by above-mentioned first critical speed prediction model, it is to be predicted to obtain
First critical speed build Rotor Low-speed Dynamic platform again when meeting dynamic balance running condition, to can once put up full
The Rotor Low-speed Dynamic platform of sufficient dynamic balance running condition realizes live fast-assembling, saves duration and cost.
In addition, Rotor Low-speed Dynamic platform provided by the present application can also carry out dynamic balance bench system by " self-vibration method "
The test of first critical speed, and realize being mutually authenticated between theoretical calculation.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of scene ready-package Rotor Low-speed Dynamic platform characterized by comprising
Base support；
For adjusting the rubber cushion blocks of the Rotor Low-speed Dynamic platform support stiffness；
Bearing block；
For setting up the bearing of rotor to be measured；
For measuring the key phase of revolving speed；
For measuring the vibrating sensor of vibration；
For driving the motor of the rotor rotation to be measured；
Data collecting instrument and computer；
Wherein, the rubber cushion blocks are mounted between the base support and the bearing block, and the bearing is mounted on the axis
It holds on seat, the key phase is mounted on the axial edge of the bearing, and the vibrating sensor is mounted on the bearing block
On；The data collecting instrument is connect with the key phase and the vibrating sensor；The computer is adopted with the data
Collect instrument connection；The rubber cushion blocks include: the non-driven-end bearing rubber cushion blocks of the motor, drive end bearing rubber cushion blocks.
2. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that the quantity of the vibrating sensor is 2
~4.
3. Rotor Low-speed Dynamic platform according to claim 2, which is characterized in that 2~4 vibrating sensors arrangement
In the different location of same level.
4. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that the non-driven-end bearing rubber cushion blocks
Including N number of sub- rubber cushion blocks, the drive end bearing rubber cushion blocks include P sub- rubber cushion blocks, and the N and P are greater than 1
Positive integer.
5. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that the bearing is half circular journal bearing.
6. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that the base support passes through fixing bolt
It is connect with concrete pedestal.
7. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that further include:
Oil dripping tube, the oil dripping tube are located at the top of the bearing, and the lubricating oil of the oil dripping tube drippage is used for described to be measured turn
Lubrication between the sub and described bearing.
8. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that the motor and the rotor to be measured are logical
Cross gear or universal joint connection.
9. Rotor Low-speed Dynamic platform according to claim 1, which is characterized in that the motor be by salt bath principle into
The motor of row braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135565.7U CN209055277U (en) | 2018-12-19 | 2018-12-19 | A kind of scene ready-package Rotor Low-speed Dynamic platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822135565.7U CN209055277U (en) | 2018-12-19 | 2018-12-19 | A kind of scene ready-package Rotor Low-speed Dynamic platform |
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| CN209055277U true CN209055277U (en) | 2019-07-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374209A (en) * | 2018-12-19 | 2019-02-22 | 华电电力科学研究院有限公司 | A kind of Rotor Low-speed Dynamic platform and critical speed prediction technique |
| CN111722107A (en) * | 2020-06-11 | 2020-09-29 | 天津瑞源电气有限公司 | Variable-pitch motor multifunctional maintenance test platform |
| CN112729678A (en) * | 2020-12-30 | 2021-04-30 | 中国人民解放军第五七一九工厂 | Dynamic balance test auxiliary device with stator for compressor |
-
2018
- 2018-12-19 CN CN201822135565.7U patent/CN209055277U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374209A (en) * | 2018-12-19 | 2019-02-22 | 华电电力科学研究院有限公司 | A kind of Rotor Low-speed Dynamic platform and critical speed prediction technique |
| CN109374209B (en) * | 2018-12-19 | 2024-02-09 | 华电电力科学研究院有限公司 | Low-speed dynamic balance table for rotor and critical rotation speed prediction method |
| CN111722107A (en) * | 2020-06-11 | 2020-09-29 | 天津瑞源电气有限公司 | Variable-pitch motor multifunctional maintenance test platform |
| CN112729678A (en) * | 2020-12-30 | 2021-04-30 | 中国人民解放军第五七一九工厂 | Dynamic balance test auxiliary device with stator for compressor |
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